body {
    background-image: url("../images/beijing.jpg");
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;

}
/* logo */
.logo{
    width: 200px;
    margin: 50px 0 0 50px ;
}
/* 最大的盒子 */
.big_box {
    width: 440px;
    height: 400px;
    /* background-color: white; */
    position: absolute;
    top: 180px;
    right: 150px;
}

/* h1整体样式 */
h1 {
    color: white;
}

/* 表单提交内容 */
.form {}

/* 表单的公共样式 */
.biankuang {
    height: 24px;
    line-height: 24px;
    border: 1px solid #8a8a8a;
    border-radius: 5px;
    padding: 6px 6px;
    display: flex;
    align-items: center;
    background-color: white;
    box-shadow: 4px 4px 2px 1px rgba(195, 195, 196, 0.2);
    margin-bottom: 30px;


}

.biankuang>p {
    color: #8a8a8a;
    font-size: 14px;
    margin: 0 6px;
}

.biankuang>input {
    width: 380px;
    height: 24px;
    line-height: 24px;
    border: none;
    /* 设置边框为无 */
    outline: none;
    /* 移除输入框获得焦点时的轮廓线 */
}

.biankuang:nth-child(1) {
    margin-top: 40px;
}

.yonghu>img {
    width: 18px;
    height: 18px;

}

/* 下拉选框 */
.select {
    width: 380px;
    height: 24px;
    line-height: 24px;
    border: none;
    outline: none;
    margin-left: -4px;

}

select {
    color: #8a8a8a;

}

select option {
    color: #000000;
    /* 选项的颜色 */
}

/* 登录按钮 */
.denglu {
    width: 100%;
    height: 34px;
    color: white;
    background: linear-gradient(to bottom, #a6d1ff, #0066cc);
    border: none;
    outline: none;
    border-radius: 5px;
    font-size: 20px;
}
.test{
    width: 100%;
    text-align: center;
    color: white;
    margin-top: 20px;
    font-size: 14px;
}